Configuring direct portal authentication with extended functions

As shown in Figure 53:

• The host is directly connected to the switch and the switch is configured for direct extended portal authentication. The host is assigned with a public network IP address either manually or through DHCP. If a user fails security check after passing identity authentication, the user can access only subnet 192.168.0.0/24. After the user passes security check, the user can access Internet resources.

• A RADIUS server serves as the authentication/accounting server.

• Configure IP addresses for the host, switch, and servers as shown in Figure 53 and make sure they can reach each other.

• Configure the RADIUS server properly to provide authentication and accounting functions for users.

# Create a RADIUS scheme named rs1 and enter its view.

<Switch> system-view
[Switch] radius scheme rs1

# Set the server type for the RADIUS scheme. When using the IMC server, set the server type to extended.

[Switch-radius-rs1] server-type extended

# Specify the primary authentication server and primary accounting server, and configure the keys for communication with the servers.

[Switch-radius-rs1] primary authentication 192.168.0.112
[Switch-radius-rs1] primary accounting 192.168.0.112
[Switch-radius-rs1] key accounting simple radius
[Switch-radius-rs1] key authentication simple radius
[Switch-radius-rs1] user-name-format without-domain

# Configure the IP address of the security policy server.

[Switch-radius-rs1] security-policy-server 192.168.0.113
[Switch-radius-rs1] quit

# Create an ISP domain named dm1 and enter its view.

[Switch] domain dm1

# Configure AAA methods for the ISP domain.

[Switch-isp-dm1] authentication portal radius-scheme rs1
[Switch-isp-dm1] authorization portal radius-scheme rs1
[Switch-isp-dm1] accounting portal radius-scheme rs1
[Switch-isp-dm1] quit

# Configure domain dm1 as the default ISP domain for all users. Then, if a user enters the username without the ISP domain at logon, the authentication and accounting methods of the default domain are used for the user.

[Switch] domain default enable dm1

[Switch] acl number 3000
[Switch-acl-adv-3000] rule permit ip destination 192.168.0.0 0.0.0.255
[Switch-acl-adv-3000] rule deny ip
[Switch-acl-adv-3000] quit
[Switch] acl number 3001
[Switch-acl-adv-3001] rule permit ip
[Switch-acl-adv-3001] quit

Make sure you specify ACL 3000 as the isolation ACL and ACL 3001 as the security ACL on the security policy server.

# Configure the portal server as follows:

• Name: newpt

• IP address: 192.168.0.111

• Key: portal, in plain text

• Port number: 50100

• URL: http://192.168.0.111:8080/portal

[Switch] portal server newpt ip 192.168.0.111 key simple portal port 50100 url http://192.168.0.111:8080/portal

# Enable portal authentication on the interface connecting the host.

[Switch] interface vlan-interface 100
[Switch–Vlan-interface100] portal server newpt method direct
[Switch–Vlan-interface100] quit